Title of article :
Variational multiscale turbulence modelling in a high order spectral element method
Author/Authors :
Wasberg، نويسنده , , Carl Erik and Gjesdal، نويسنده , , Thor and Reif، نويسنده , , Bjّrn Anders Pettersson and Andreassen، نويسنده , , طyvind، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Abstract :
In the variational multiscale (VMS) approach to large eddy simulation (LES), the governing equations are projected onto an a priori scale partitioning of the solution space. This gives an alternative framework for designing and analyzing turbulence models. We describe the implementation of the VMS LES methodology in a high order spectral element method with a nodal basis, and discuss the properties of the proposed scale partitioning. The spectral element code is first validated by doing a direct numerical simulation of fully developed plane channel flow. The performance of the turbulence model is then assessed by several coarse grid simulations of channel flow at different Reynolds numbers.
Keywords :
Large eddy simulation , Incompressible turbulent flow , Variational multiscale method , spectral element method
Journal title :
Journal of Computational Physics
Journal title :
Journal of Computational Physics